Trane R Series Diagnostic Troubleshooting Repair page 48

MANUF .
USE ONLY
L
0
W
V NOT USED
0
L
T NOT USED
A
G
E EVAP ENTERING —
I
N
P
U
T
S
U/O VOLT TRANSF —
U/O VOLT TRANSF —
Figure 10 CPM (Chiller) Module (1U1)
48
Module Power and Miscellaneous I/O
° TP1 + 5V
° TP2 +12V
IPC (+) — J1-4
IPC (-) — J1-3
IPC (+) — J1-2
IPC (-) — J1-1
NO J2-2
NO J2-1
OUTDOOR AIR — TB1-1
TEMP — TB1-2
EMERGENCY — TB1-3
STOP — TB1-4
NNS — TB1-5
NNS — TB1-6
{
CEWT — TB2-1
CEWT — TB2-2
{
CLWT — TB2-3
CLWT — TB2-4
J3-5
WATER TEMP — J3-4
KEY J3-3
EVAP LEAVING — J3-2
WATER TEMP — J3-1
AUX TEMP — J6-3
KEY (N/C) J6-2
AUX TEMP — J6-1
J4-3
KEY J4-2
J 4-1
I/O terminals
For the checkout of the I/O, refer to the block diagram of the module in
10 and the Chiller Wiring Diagrams for both high and low voltage circuits. All
voltages are measured differentially between terminal pairs specified unless
otherwise indicated. The first terminal in the pair is the positive (or hot)
terminal. Voltages given are nominals and may vary by ±5%. Unregulated
Voltages (unreg) or 115 VAC voltages may vary by ±15%.
J5-1 — 115V H
J5-2 — 115V H
J5-3 — KEY (N/C)
J5-4 — 115V N
J5-5 — 115V N
TB3-1 — CHILLED
WATER FLOW
TB3-2 — SWITCH
TB3-3 — EXTERNAL
AUTO/STOP
TB3-4 — INPUT
TB4-1 — COM ALARM
TB4-2 — (NO) RELAY
TB4-3 — (NC)
TB4-4 — COM COMPR
TB4-5 — (NO) RUN
RELAY
TB4-6 — COM MAX CAPACITY 0
TB4-7 — (NO) RELAY
TB4-8 — COM EVAP PUMP
TB4-9 — (NO) RELAY
TB4-10 — COM SPARE
TB4-11 — (NO) RELAY
RLC-SVD03A-EN
H
I
G
H
V
0
L
T
A
G
E
I
N
P
U
T
S
U
T
P
U
T
S
Figure